Camera



19, 1930. L. KING 1,773,106

CAMERA Filed Feb.-.14. 1927 4 Sheets-Sheet l L. A.- KING Aug. 19, 1930.

CAMERA 4 sheets-sheet Filed Feb. 14. 1927 1.. A. KIN-G Aug. "19, 1930.

CAMERA Filed Feb. 14. 1927 4 Sheets-Sheet 3 iii;

L. A. KING Aug. 19,1930.

CAMERA 4 Sheets-Sheet 4 Filed Feb. 14, 1.927

Patented Aug. 1 9, 1930 LELAND A. KING, 0:? cinema, rumors CAMERA Application filed February 14, 1927. Serial No. 167,958.

My invention relates to cameras, and more particularly to cameras for taking pictures on segmental portions of the photographic film progressively.

An object of my invention is to provide a camera of the character described for pro gressively moving segmental portions of the film into registration with the cameralens, and subsequently operating the camera shutter to expose the film.

A further object of the invention is to provide a camera of the character described, in which automatic means cooperates with the film advancing mechanism to prevent further exposure of the negative after each of the segmental portions have been exposed. In this manner I have guarded against double exposure should the operator neglect to count the successive exposures or should the control mechanism be inadvertently operated after complete exposure.

A further object of the invention is to provide a camera of tire character described, havig automatic means controlled by the open- 5 and closing of the film compartment for r establishing operative conditions of the shutter. Thus, after a film has been entirely exposed, the shutter mechanism cannot be again actuated without first opening and closing the film compartment as in the introduction of an, unexposed film.

Other objects and advantages of my invention will appear more fully from the following description and the accompanying drawings in which similar characters of reference indicate similar parts throughout the several views.

Figure 1 is a perspective view of an embodiment of the invention;

l ignre 2 a top plan view of the camera with the top plate removed, and the photographic film compartment opened;

Figure 3 is an elevation of the photographic film employed;

Figure 4 is a perspective view of the photographic film advancing mechanism removed from the camera;

Figure 5 is an elevation of a part of the mechanism shown in Figure 4; p I

Figure 6 is a fragmentary View showing a part of the mechanism illustrated in Figure 4;

Figure 7 is a top plan of a modified form of the invention;

Figure 8 is a front elevation of the mechanism illustrated in Figure 7 I Figure 9 is a view similar to Figure 8 but with the elements in a different operative posltion.

Figure 10 is a sectional view along the line 1010 of Figure 7 Figure 11 is a fragmentary section taken on the plane of lines 11-11 in Figure 4, showing the link 27 and associated parts;

Figure 12 is a fragmentary detail sectional view taken on the line 12l2 of Figure 2, looking in the direction of the arrows and showing the pawl 30 and dog 33 and associated parts.

In carrying out the invention, I make use of a case 1 having a removable top cover plate 2 and a hinged rear door 3 which when opened provides access to the film compartment 4 of the camera (see Fig. 2). A pair of pockets 5 secured to the inner wall of the door 3 provide storage space for two negatives.

The camera 1 is provided with the standard type of shutter 6 actuated by the cable release 7. The shutter assembly is carried by a tube 8 which is slidable within a fixed casing 9 projected through the front walls of the camera. This is for the purpose of focusing the camera. To further aid in the framing of the subject, I provide the ordinary type of direct view finder 10 having a mask 11.

With reference to Figure 4, I have shown the mechanism for carrying and advancing the circular film employed. Such a film is shown at 12 in Figure 3. The mechanism is mounted upon a removable partition wall 13, disposed transversely across the interior of the camera 1. The wall 13 has an opening 14 theretlirough having the contour of a oneeighth sector of the circular photographic film l2.

The mechanism consists in a shaft 15 which projects through the wall 13 into the film compartment 4, and is threaded at that end 109 7 cable and provided with a nut 16 by means of which the film 12 is secured to the shaft with its emulsion to vard the wall 13. The film is pr vided with an opening 1? through which the shaft passed.

Mechanism for rotating the shaft oneighth of a t irn is provided in a lever 18 pivtally mounted at mid-point upon a screw The lower end of the lever 18 is pivally connected at 20 to a reciprocal arm L1. Qt tension spring 22 having its ends mounted on adjacent portions of the lever 18 a 1: arm 21 serves to exert an upward tension :pon the pivotaliy mounted and reciproi he outer end of the a m 21 has a pin ending laterally therefrom, one end with a cable re which engages at lease 2i. 'lhe opposite end of the release a standard type of push rod 25 for a tuation of the cable so as to propel the 2i toward the lever 18 and thus move ne lever upon its pivotal mounting.

The upper end of the lever 18 is connected I pin .26 t ii, (see G). The pin enter-us outwardlv from the face of the link for a prwpose hereinafter desc 'ihed. The opp site end of e link 27 is connected at 28 to a drum 2U. rotataoly mounted upon ng pressed pawl 1s ior engagement with a to the s iaft 15. There ratchet wheel 31, and omsistii g of the arm 21, lever ram :29 is so arranged as to cary movement of the he arm 21 is actuated by the The rotation of the drum drum ach time cable release 29 caused by movement of the link 27 which is connected at 28 to the drum so that upon each reciprocal movement of the link the drum 29 carrying the pawl 30 moves a distance sufficient to advance ratchet wheel 31 v engagement herewith which is in turn hired to the shaft 15. Thus the shaft 15 is a vanced with a h stroke of the cable relea e w adistance sufiicient to bring an unexposed part of the film into registration with the aperture 1 f. A tension spring 32 serves to maintain the lever 18 in the position shown in Figure -l and thus hold the arm 21 in operative position for actuation by the .able release.

for positively locking the shaft 15 age ns'; moven cut during the retraction of pawl 30 is vided in a dog pivotally mounted on a shaft S-l having a radially xtending arm which bears upon the pin lhe arm 35 (see Fig. 6) carries a shoe arm by i elevate move out of engagement with the teeth of the ratchet wheel 31. Upon the return movement of the pin 26 with its associate link and lever the pin travels behind the portion so and the shoe slips under the pin against the force of the spring 38. At this time the dog 33 is maintained by a sprii it) in en tragcnent with the teeth of the ratchet wheel 81 to prevent rotation of tie shaft 15 during the exposure of the film which takes place at this time.

Means for operating tie shutter o of the camera a the end of toe advancing rotary inoven'ient of the shaft 15 is provide-a by a plate a l which pivohrly connected as Qt? to the link 27. it the outer end of the plate 11 is a pin 12 extending laterally therefroizi. the rear portion of which slides in a slot l of a plate ll.

Referring now to Fig. it will be seen that the cable of the cable release 7 for operating the shutter connected with the pin 42 so that movement of the plrf'e ll. at the end of its stroke and after the drum 29 has ceased rotating w ll cause the shutter 6 to operate and expose that portion of the film in registration with the opening ll.

Means for causing the film to bear closely against the rear face of the wall 13 to assure positioning of the film in the focal plane of the camera is supplied by a disc 4:6, which is hingedly secured to the bottom wall of the camera. A push rod 1-? which moved toward the front of the camera as the rear door 3 is closed actuates the sh: 18 for noving the disc -'l6 into registration and to bear ainst the film L at that por ion in the region he opening 11. This mechanism is shown 1 Figure 2. The disc 45 is lined and extends radially from the shaft L8. The push rod 11'' is connected to an arm extending from the push rod 18 shown. in dot-ted lines that upon each inwaro movement of the push rod the shaft -18 is rotated to swing the disc 1-6 against the negative. lVhen the door is opened the disc falls back to readily permit extraction of the film.

One of the important features of my invention is an automatic means for preventing further operation of the shutter 6 after all of the segmental portions of the negative have been exposed. In other words, when the shaft 15 has been advance 360. This mechanism consists (with reference to Fig. 5), in a slotted plate .30 in which the inner end of the pin 2? rides upon reciprocal movement of the arm 21. A portion 51 of the plate is cut away, communicating with the remote end of the slot. A pivotally mounted key 52 is provided. one end 53 of which is formed to entirely close the cutawa i portion 51 of the plate :30 so that th pin is free to move in the slot as long as the key lies in the position shown in Figure 5. If however, the key moves to the position shown in dotted Ill] lines upon its pivotal support the pin 23 will move up into the cut-away portion 51 by virtue of the upward force exerted by the spring 22, and further movement of the arm in its reciprocal path is prevented. Also, the pin 23 is thus elevated and is out of registration with the inner end of the cable release 24, so that pressure of the cable release will not actuate any part of the mechanism here-t fore described.

ll leans for automatically elevating the key 52 once during a comnlete revolution of the shaft 15 is provided in a pin 5a extending radially from. the hub of the ratchet wheel 31 which engages with a dog 55 pivotally mounted at 56 to the wall 13. A radial loclo inn arm 57 associated. with the dog 55 normally bears against a pin 58 carried by the key 52, so as to maintain the key in the position shown in the full lines of Figure lVhen the dog); 55 elevated by engagement oi? th pin 54; therewith, the arm 57 will move out of registration. with the pin 58 and a. spring 59 provided for the key will elevate the key and. thus prevent further actuation of the adv ice and shutter mechanism.

llleans for restoring the lrey to its operative position shown in full l s l con- 60 having is of a spring pressed. pl a disc {31 with inclined ed 62 end. The edges 62 engc 'e with surface 63 at the adjacent end 0 1 l D that as the push rod 60 is extended toward the front of Ll l'd ca a as by c: the door i the camera, is key will tion to disconnect the mccha i'sm upon the completion of the successive movement of the shaft 15 360. To reestablish operative connection. between the cable release 24 and the mechanism, it is only necessary to open nd close the d 3 which is the natural operation employed for the siulxtituticn of an. uneto posed film for fresh one. This is because the arm 57 again. en, ed with the pin 58, the pinv having passed. from engagement with the locking dog Hence an the loor is ore el the disc 6: 2 by engagement wi h the member will move the men'iber to full line on, (see l? 5) so that the looting arm will overlie in tie The usual method employed duction id removal of .ilms m the camera consists in the use of" the ht proof sleeve 1 is slipped over the camera and throi' 'h j flan l r1 n1 q vo it n. w 11 11.1.... l. operate. is client I have found this to be an cllicient daylight method ott changing lilzns.

ln operation my improved can era loaded by opening the d p. :ihn in the me or descrn cc. threaded portion of the shaft 15 and L i 1? vwI' it Inn i ie on... .o secun a1 1. .lif closed causing the p sh red to 61 out 0; registration with the for the introkey 52.

The key at this'time is in registration with the cut away portion 51 and is held inthat position by the presence of the pin 58, which bears against the arm 57. The pin 54.- is just in advance of the end of the dog 55, which is a slight distance counter-clockwise from .the position shown in Fig. 4:.

The camera. is then focused in precisely the same manner as the ordinary camera, and the cable release 24. is actuated by pressure upon the stem This causes movement of the arm 21 and simultaneous movements each as described of the lever 18, the link 27 and the plate 41, as well as the drum 29 and the pawl 50, all cooperating to advance the shalt 1.5 a distance equal to one segmental portion of the disc which in the present embodiment (with reference to Fig. will show one-eighth of a revolution.

At the end of the advance stroke of the plate ll the cable release 7 actuates to open e shutter 6 and expose the then motionless .nn. When pre ure is relieved from the stem the mechanism resumes the position shown in Fig. 4, chiefly by virtue of the spring 32.

This operation is repeated with each change of posture, expression, or characterthe subject, until all eight sectors of the negative have been exposed. hen the 7 hth sector has been exposed, the arm 21 be elevated cut oi registration with the e release 24: because of actuation of the in. the manner described. It then becomes necessary to open the door before ',n can again be operated. At this time an n. exposed lilm substituted for the exposed nli in the camera.

In Fi e. 7 to 10, inclusive, Ihave shown another modification of my invention, by me s of which I may obtain the exposure of the several sectors of the film in more rapid and with consistency as to the This camera is pted for use in photographing a moving; subject, and for that purpose employs wide angle lens and a focalplane shutter.

In this form of the invention the camera occupies '70 similar in construction to the 13"" used in the first form described. This provided with a door 71 at the rear the introduction of photographi lilo-:1 to a film bearing spindle or shaft 72, upon wl' h a nut 78 is carried for securing the f. i in place.

Means for-advancing; the film so that successive sectors therco'l move into ref 'stration "i the apparatus frame 7 and To is proviood in a bent crash (6 keyed to a shaft 77, the inner end which bears a bevel 78. The gear 7 8 meshes with a similar ear carried by transversely disposed shaft 80. The shaft 80 has an eccentric plate 81 at-the forward endthereof, which is connected by means of a pitman 82 (see Fig. 8 and Fig. 9) to a collar 83 rotatably moun edge 81 ot the pawl 81 rides over the teeth without bind The sp" 1' mounted upon the collar 8 -1, presses the pawl 81- aga'nst the ratchet wt 8" Continuous rot iv movement of the crank will will. theretore, cause an intermi at rotary movement of the sh l er of teeth in the rat het wheel 95 are (lttGl1111l1 able U i "i the film to move tor each expo: and in the present case 15 degrees.

Means lor holdin movement durin 8i allorded by a se ured to th front plat mechanism, and which l 99 tor the are i advancing a tflathed portion the cam.

Means for exposing the film 12 immediately subsequent to th advancementof the nor- 9 tion of the film into registration with the apertures and 1 provided in an eccentric plate 92 carried at the inner end of the she l t The plate (2 is connected by pitma i to flanged po -Ion of a col rotatably mounted upon tl t ce= ot the shaft 72. The collar 9:: carries pivotally mounted trip lever 95 thereon w ich has at its inner end a toothed portion 90 lo engagement with recess 97 in a drum which is also rotatahly n'ionnte-tl upon the shaft The drum 98 has secured at it end a 'f- A vided with an opening 100 thercthrough. The construction of the shutter plate 99 is similar to the construction ot the ordinary 3e of focal-plane shutter of the rotary type, d is normally held in the position shown 7 L 10 a inst the tension of a s n-mg 101. V her; the trip lever noved as by engageinent with a spinele 102 rojected into 1M1 ot the i i 4 shit is free to 0 across the apervirtue of the spi Q 5. that the slot 100 traverses mally engages with the outer end of the spindle 102. In the path of the trip 95 a pin 10 1- carried by the hub 86 of the ratchet wheel 85 engages with a depending portion 105 of the latch 103 so as to move the latch out of engagement with the spindle and thus permit the spindle to move forwardly out of the path of the trip lever by virtue of a compression spring 100 associated with the spindle (see Fig. 9). In this manner operation of the shutter 99 prevented upon the completion of a 360 rotary movement of the shaft (2.

Means for recstablishing the operative position 01'' the spindle 102 when an unexposed film has been substituted for the exposed film is provided in. a rearwardly ex tending spring pressed rod 107 which advances forwardly against the force of its spring 108. The outer end of the rod 107 arrics radially extending linger 109 which maybe swung into registration with the adjacent end of the spindle 102 (see Fig. 8) so that a rearward movement 01" the rod, as by opening the rear door 71. will cause the linger to b upon the spindle and move it rearwardly so that the latch 103 may again ene with the spindle to throw the spindle {O the path of the trip lever 95.

ans for causing the finger 109 to swing toward and over the spindle 102 is provided in a pivotally mounted plate 110 carried by the front plate 88 or" the advancing mecha- Means for causing the pin to bear against the hub and to tall into the bore is provided in a rod 113 with spring 114: urging the rod toward the plate 110, and which has at its outermost end a thumb grip 115 disposed exteriorly ot the camera case 70. The inner end of the rod 113 carries a disc 116 which engages with a notched portion 117 of the plate 110.

A connecting rod 118 connects the plate 110 with the rod 10?, upon which the finger 109 is disposed so that movement of the plate, by projection of the pin within the bore 112, will cause the linger to move into registration vith the spindle as described by virtue 01'? the force of the spring 11 Means for locking the rod 113 in such position as to hold linger 109 out of registration with the spindle 102 is provided in a locking pin 119 which engages with a bayonet slot 120 provided in the sheath 121 through which the rod 113 is projected.

Means for locking the shaft against movement after the linger 109 has been moved to overlie the spindle 102 is provided in a locking dog 122 carried by the shaft 123 upon which the plate 110 is disposed and which moves to the position shown in dotted lines (see Fig. 10), when the plate 110 is drawn to the position shown in Fig. 9, as by an outward movement of the shaft 113.

In operating this form of my camera, the door 71 is opened and the film 12 placed upon the shaft 72 and secured by the nut 73. As the door 71 opens, the rod 107 moves so as to reengage the spindle 102 with the latch 103 in the manner described. The rod 113 by means of the grip 115 is then drawn out so as to disengage the pin 111 from the bore in the hub 86 and the dog 122 with a notched portion 124 of a disc 125 carried by the shaft 77. The crank 76 may then be rotated to cause the film to advance 45 degrees by the mechanism described, and at the end of that movement the trip lever will engage with the spindle 102 so as to release the shutter and the spring 101 will cause the shutter to move so that its aperture portion will traverse the apertures 7 4 and 75, and thus expose the negative. Continued movement of the crank 76 will advance another sector of the film and further exposure thereof in the manner described. until eight intermittent movements and subsequent exposures have been brought about. At that time the pin 104 will engage with the depending portion 105 of the latch 103 to release the spindle so that the spring 106 will move the spindle out of the path of the trip lever. In order to reengage the shutter mechanism, it would then be necessary to open the back, as in the process of substituting an unexposed film for the exposed one.

If the pin 119 is out of engagement with the bayonet catch 120, the spring 106 prior to opening the back of the camera will cause the finger 109 in the manner described to overlie the spindle 102 and the dog 122 will engage with the notched portion 124 of the disc 125. IVhen the door is then opened, the finger will. reset the spindle and the photographer must then draw the rod 113 outwardly so as to disengage the pin 111 from the bore 112 before the camera may again be used.

I claim:

1. A camera for successively exposing segmental portions of a photographic negative comprising movable means for a supporting the film, and a lens shutter mechanism for exposing the film, means for advancing a segmental portion of the film into registration with the lens and shutter and for operating the shutter mechanism, said means including interlocking members for communicating movement to the movable supporting means, means associated with a movable member and with the interlocking members for disengaging the interlocking members when the movable member has completed a cycle of its movement, and other means associated with the film compartment door of the camera for reengaging the interlocking members when the door is opened.

2. A camera for successively exposing segmental portions of a photographic film comprising a rotatable shaft, means for securing the film against movement on the shaft, a lens, a shutter, means for masking all but a segmental portion of the film which is in registration with said lens and shutter, manually controlled means including interloc-k- 1 ing members for advancing said shaft through an arc determinable by the degree of said segmental portions of the film, and for operating said shutter, automatic means associated with said last named means for disengaging the interlocking members upon registration of the last segmental portion of the film with the lens, and other means associated with the film compartment door of the camera for re-engaging the interlocking members to re-establish the operativeness of said manually operated means.

A camera for successively exposing segmental portions of a photographic film, comprising movable means for supporting a photographic film, a lens, a shutter, a shutter cable release for said shutter, manually operable means for advancing said movable means for causing the segmental portion of said photographic film to move into registration with the lens and shutter, and means associated with the last named means for operating the shutter cable release when the segmental portion of the photographic film is in registration with the lens and shutter.

41. A camera for exposing segmental portions of a. photographic film, said camera having a photographic film compartment and a door therefor, a shaft for supporting said photographic film, a lens for said camera, a

photographic film engaging member, and

means associated with said member and with the door of said film compartment for moving the member against the film and behind that aart of the film in registration with the lens upon the closing of the door and being so constructed as to disengage the photographic film when the door is opened.

In witness whereof, I hereunto subscribe my name this 10th day of February, 1927.

LELAND A. KING.

CERTIFICATE OF CORRECTION.

Patent No. 1,773,106. Granted August 19, 1930, to

LELAND A. KING.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 110, and page 5, line 51, claim 1, for the word "negative" read film; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 21st day of October, A. D. 1930.

M. J. Moore, (Seal) Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,773,106. Granted August 19, 1930, to

LELAND A. KING.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 110, and page 5, line 51, claim 1, for the word "negative" read film; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 21st day of October, A. D. 1930.

M. J. Moore,

(Seal) Acting Commissioner of Patents. 

